Cynara algarbiensis, Cosson ex Mariz

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 248

3. C. algarbiensis Cosson ex Mariz , Bol. Soc. Brot. 10: 236 (1893).

Stems 10-50 cm, white-tomentose. Leaves with arachnoid indumentum and glaucous above, white-tomentose beneath, the marginal spines 4-6 mm, yellow, mixed with shorter spines; basal leaves 5-8 x 2-8-3 -5 cm, elliptic-lanceolate, spinose-dentate, shortly petiolate; cauline leaves 7-20 x 3-5-12 cm, lanceolate, with ovate-lanceolate, pinnatifid segments, sessile. Involucre 15-35 mm, ovoid; involucral bracts greenish or purplish, the outer spinose, recurved, the middle with an ovate-lanceolate appendage tapering into an erecto-patent spine 10-30 x 3-5 mm. Corolla purplish-blue. Achenes 3-5 x 2-3 mm, shiny, brown; pappus 20-25 mm. Cultivated or waste ground. 9 S. Portugal. Lu.